2k Vs. Xp

Ok here is the story
my friend rekons that 2k is better than XP
i dont
could anyone help me by informing me of the things that 2k has that XP doesnt and why 2k could ever ever ever ever ever ever ever be better

i am really beginning to dislike XP. Everything is just running slower for me, and I got 512 megs of RAM and a decently fast 750 Mhz Athlon. Windows 2000 was a heck of a lot faster at running programs, multitasking, and games. I get 68 FPS in Q3 with XP and around 81 in Win2k, 800x600 HQ with a GeForce2MX. I get around 100 % CPU usage in XP from time to time for no real reason even if the system was idle for a bit, its just uncomfortable to use from time to time. The only upside is games compatibility, games like High Stakes can run easily now without compatibility updates. I think after a few service packs it may be better but right now I like 2000, but I am staying with my XP/98 dual for now.